Cultivator



Jan. 19 1926; 1,570,415

I s. H. SUMBULIAN CULTIVATOR Filed July 5. 1924 2 Sheets-Sheet 1 i a l .12121: .nms I RQQEM Sarha fi SzmzZzz/z'dn Jan. 19,1926.

' S. H: SUMBULIAN CULTIVATQR Filed July 3. 1924 2 Sheets-Sheet 2 5dr]: is E Sui/1512120.

M M m 3 m vn mm. Q. \h I H M W M W W I Jr: 5... vw b N\ w I W kw a. o h l \0 RN ww 5 v o xm Mb .1 o \O -1- ILJI. mm v w. n g HAW m r! Nb @Q a o 4 @u. &\ g. i 1 nw attozmq I Patented Jan. 19, 1926.

UNITED stares same a. emu-1.11m, BY-

PATENT oFF1ca.

CHANGE OF SABKIS HAIG BEULAN, OF FRESNO cun'rrvaron.

Application filed July 3,

improvements-in agricultural machines, and

, particularly to devices for use in' cultivat- 1n vineyards and orchards. I

e principal object of the invention is to rowde a cultivator for use invme ards and orchards, and. which is constructe and 'arran ed to withdrawthe ground treat ng implement out of the line of draft when such implement is about to contact w1th av vine or tree. 1

Another object is to provide a device of this character wherein the ground treatlng implement is automatically withdrawn from its operative position, when in close proximity to a vine or tree, and subsequently pro ected into operative position, after the vine or tree has been passed.

1 A further object is to provide a device of this character which is constructed for attachment to a tractor, whereby to insure the proper draft, and the proper alinement of the treating implement, w1th respectto 36 the row of plants.

A further object is to provide a device of this character wherein the implement operating mechanism is operated by the driving mechanism of the tractor.

Other objects and advantages will be apparent from the following description when taken in connection with the accompanying drawings.

In the drawings:

- Fi re 1 is a top plan view of the tractor attac ent. I

Figure 2 is a rear elevation of the same.

Figure 3 is an enlarged vertical longitudina sectional view on the line 33 of 50 Figure 1. I

Referring particularly to the accompanying drawings, 10 represents the draft lug of a tractor, 11 the worm shaft, and 12 a portion of the front axle of the tractor, in con- 1924. sermu'im. 724,1 1s.

nection which the present invention is adapted for use. The tractor is shown in dotted lines,and is indicated by the numeral 1- Extending from the side of the tractor, .11

between the front and rear wheels thereof, is a liorizontal frame 14, within which is longitudinally slidable a bar 15, a pultivato'r implement 16being carried by'the outer end ofu's'aid ban. Formed on the inner end of the; frame 14, and extending longitudinally of theijtractor, forwardly and rearwardly, respectively, are the arms 17 and 18, the former of which is slightly shorter than the latter {and '.has-.;' its extremity bifurcated, as shown atnltl; with a pivot pin 20 disposed the trunnion pinof the front axle of the tractorv The extremity of the other arm 18 10' I .throughithefurcations thereof. This pin is h is pivotally connected with an ear 10 de- 1 pending from the draft lug 10, whereby the entireframe 14 is capable-of vertical swinging =moveme'nt. On. the; rear endof the worm shaftgl-l-"is fined *a': sprocket wheel '21,;-

to which reference-will be made later herein.

An elongated. casing 22 is secured to the rear o f.the tractor, withQne end in covering relat1on to the worm: shaft 11, said casing extending downwardlygand transversely of the tractor, where its other end is secured to the rear end of a larger elongated casing 23. Properly journaled inthe casing 23, and-extending longitudinally therein, with their.

inner ends in closeproximity, ,are the shafts 24: and 25, the former of which has its rear end projecting beyond the end of the casing 23 and provided with a sprocket wheel 26. Engaged around this sprocket wheel 26, and the before-mentioned sprocket wheel 21, is a drive chain 27. The inner end of the bar 15 is provided with a transverse, head 28, and connected to each end of this head, and to the frame 14, are the strong coil springs 29, said springs normally I urging the bar outward, to' project the ground treating implement 16 into operative position. The outer end of the shaft 25 projects beyond the end of the casing where it is provided with a pulley 30, and secured to and wound on this pulley is one end of a cable 31, the other end of which is secured centrally to the before-mentioned head 28. On the inner end of the shaft 24 is fixed the female member 32, of a clutch, the male member 33 upwardly extending, and pivoted, pedal lever 35, by means of which the said clutch member is shifted into and out of engagement with the member 32. Properly sup ported in one side of the casing 23, adjacent the intermediate portion of the shaft 25, and extending inwardly, is a stub shaft 36, a bevel gear 37 being fixed on the inner end thereof for engagement with a smaller" ear 38 on the said shaft 25. Slidable t rough a guide 39, within the casing 23, is a rod 40, one end being pivotally connected with the pedallever 35, and the other end being formed with a hook 41, arranged in the path of a laterally projecting pin 42, carried by one side face of the gear 37, and said book being arranged to be engaged by said }pin to pull the rod and rock the lever, for t e purpose of shifting the clutch member 33, out of engagement with the member 32. Pivoted to the said face of the gear 37, a short distance from the pin 42, and extending radially with respect to the gear, is a trip arm 43, the same having a transverse arcuate slot 44, through which extends a screw 45, carried by the face of the gear and by means of which the arm is adapted to be clamped in different pivoted positions. Carried by the lower face of the upper wall of the casing 23, over the gear 37, is a stationary circuit closing contact member 46,

and pivotally supported on the casing, adjacent the contact 46, in position toswing into and out of engagement therewith, is a movable contact member 47, the'same having a projection 48 arranged to be struck by the outer end of the trip arm 43, when the gear has nearly completed one revolution, as will be more clearly explained later herein. Mounted on the casing 23 is a D. C. generator 49. Mounted in a suitable support 50, on the casing 23, is a bevel gear 51, the shaft of which forms the belt pulley attachment 52, of the tractor, the generator shaft 53 being provided with a. bevel gear meshing with this gear 51, to drive the generator, as the engine runs. In the other end of the casing 23 there is mounted a rheostat 54,

and adjacent the rheostat is a meter 55, said meter and rheostat being connected in series. Disposed within a housing 56, mounted on the casing 23, is a solenoid magnet 57, the core 58 of which has its outer end pivotally connected to the before-mentioned pedal lever 35. Depending from the outer end of.

the slidable rod or bar 15 is an arm 58, and pivotally connected with the lower end thereof, is an arm 59 which extends horizontally over the ground treating implement 16, but with a slight forward inclmation. Carried by the arm 58, and insulated therefrom, is a contact member 60. and carried ,ngaged with the collar 34 of the. clutch member 33 is the forked end of the by the arm 59, and insulated therefrom, is

of the solenoid 57 by means of a wire 64,

while a wire 65 connects the other end of the coil with oneterminal of the generator 49. A wire 66 connects the other terminal of the generator with the rheostat. An adjusting ground wheel 67 is carried by the frame 14, and is operable through the medium of the lever 68, mounted on the tractor, and the connecting links 69,, and by means of Whlflfl the frame 14 is capable of being elevated above the ground, when the device is to be moved to and from the field.

Normally the bar 15 is projected outwardly so that the implement 16 is in operative position within the ground, and as the tractor proceeds forwardly the implement will cultivate the soil in the row of vines or trees. When the implement is in close proximity to a vine or tree the arm 59 will contact with the vine or tree and being pivotally mounted, will swing rearwardly bringing the contact 61 into engagement with the contact 60, and as the contacts 46 and 47 are in engagement with each other, a circuit is completed 62 to 65, inclusive, with the result that current from thegenerator, which is constantly driven by the tractor, causes ley on the outer end thereof winds the cable 31, with the result that the bar 15 is quickly withdrawn and the implement 16 moved out of the line of tlfeplant rows in sufficient time to prevent contact thereof with the plant. As the shaft 25 continues to rotate it drives the gear 37, with the, result that the pin 42 will, when the gear has made the greater portion of a revolution, engage with the hook 41, pulling the rod 40 and rocking the edal lever 35, so that the male member 33 is withdrawn from the female member 32, thus disconnecting the shafts 24 and 25. The shaft 25 is then stationary, while the shaft 24 continues to rotate, being constantly driven bythe chain 27. Thismovement of the pedal lever 35 causes the same to engage and move the core of the solenoid outwardly. At the same time that the pin 42 engages with the hook 41, the arm 43 engases prevent the implement st the movable contact 47 withdrawing same from the contact 46, which breaks the circuit and permits the core of the solenoid to be withdrawn by the'lever 85. A spring 70, connected to the arm-59 and to the arm 58, serves to yieldably hold'the arm .59 in advanced position for contact with the plant, to operate prior to and in suflicient timeto the plant. When the contact 61 has move away from the contact 60, the circuit is thereby broken, whereupon th contact 47 is restored to its osition in engagement with the contact 46.

t will, of course, be understoodv that the driving connections between the tractor belt pulley shaft and the erator maintains the generator in operation while the tractor motor is in motion. I

It will thus be seen that there is provided a cultivator for use in vineyards and orchards which is adapted to en ivate between the plants in the row, and which is automatic in itsoperation to withdraw the cultivator implement to prevent contact with a plant, and to immediately restore the 1m lement to operative position in the row, a r the plant as been passed. By the construction it is ossible to cultivate close to the plants, an without danger of injury thereto.

What is claimed is: v w

1. An orchard cultivator including a ground treating im lement, yieldable means for maintaining t e implement projected into a row of spaced plants, a motoroperated shaft havin operative connections with the implement 0]? withdrawing the latter from the row, an electric circuit including the motor, and a circuit closer 0n the implement and in said circuit, said circuit closer including an extension projecting forwardly of the implement-for movement by contact. with a plant.

2. An orchard cultivator including frame, a bar slidab'le on the frame and carrying a ground treating tool, spring means between the bar and frame for normally maintaining the bar and tool projected into arow of s aced plants, means for withdrawingv the er, and means operatively connecte with the withdrawing means and extending forwardly of saidtool for contact with a plant and subsequently initiating movement of said withdrawing means.

3. An orchard cultivator including a ground treating implement, yieldable means or maintaining the implement within a row of spaced plants, an electric circuit, .a motor included. in the circuit, a shaft operable by the motor, flex ble means connecting the shaft and theimplement for withdrawing the im lement from the row upon rotation of sai shaft, and a circuit closer included in the circuit and mounted on the implement, said circuit closer including a controlling means projecting forwardly of the implement in with a plant. v

4. In an orchard cultivator, the combination with a tractor, of a frame movably connected I with the tractor, a ground treatin implement carried by the frame and norm s 1y projected in position to operate in a row of spaced plants, an operating shaft constantly driven by the tractor, a second shaft.

operatively connected withthe implement forwithdrawmg the latter from the row of plants, a clutch for the shafts, an electric position to be moved by-contact circuit including a circuit closer, an arm forming a part of the circuit closer for 'closing thecircuit upon contact with a plant, and an electro-magnetic means in the clrcuit for o eratingthe clutch.

5. 11 an orchard cultivator, a frame, means for attaching the frame to a tractor, a frame carried by the first frame andprojecting laterally therefrom, a member slidable on the .second frame and having a ground treating implement on its outerend, spring means normally holding the slidable ,member in extended position, an electrically driven motor including a winding shaft, a cable connected with the shaft and the shdable member,.and a circuit closer on the implement and having controlling means extending forwardly of the ground treating implement to be moved by contact with a plant to close a circuit through the motor I whereby to wind the cable'on said shaft for retracting said im lement.

In test1mony vw m v SARKISYH. SUMBULIAN.

ereof, -I afiix my signa- 

